Re: [HACKERS] Wishlist for next version: group by clause

> 
> 
> I didn't realize PG could not do
> 
> 	group by [function on column]
> 
> Ouch!
> 
> I *think* all the "real" RDBMS can do this.  If Oracle and 
> Sybase both support it, that makes it more or less a de facto 
> standard :-) I'm sure we use this syntax in several places in 
> our apps -- certainly in our time-series analysis package.  
> Implication is that 6.3 is still not functional enough to 
> replace an existing commercial SQL server such as Oracle or 
> Sybase for production apps, without expensive manual proofing 
> and rewriting of embedded SQL statements.
> 
> Does anyone know whether this group by syntax is ANSI SQL92?

Added to TODO.  Vadim may have a comment on this, and how hard it is to
do.  I know we allow functional indexes, but am not sure how that
relates to this problem.


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